326
FNCA52 TJSJ 100730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST FRI APR 10 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-102000-
SOUTHEAST COASTAL PLAINS-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 10 0 20
TEMP (24H TREND) 88 (+2) 70 (-3) 88
RH % (24H TREND) 50 (-10) 93 (+7) 53
WIND 20FT/EARLY(MPH) E 14 E 12 E 13
WIND 20FT/LATE(MPH) SE 16 NE 9 SE 16
MIXING HGT(FT-AGL/MSL)4590 4620
TRANSPORT WND (MPH) E 13 E 14
VENT RATE (KT-FT) 50490 55440
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-102000-
SOUTHERN HILLS-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 0 30
TEMP (24H TREND) 84 (+2) 67 (-4) 84
RH % (24H TREND) 61 (-11) 99 (+5) 64
WIND 20FT/EARLY(MPH) E 11 E 10 E 11
WIND 20FT/LATE(MPH) SE 11 E 9 SE 12
MIXING HGT(FT-AGL/MSL)5000 5520
TRANSPORT WND (MPH) E 12 E 12
VENT RATE (KT-FT) 50000 55200
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-102000-
NORTH COASTAL PLAINS-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 40
TEMP (24H TREND) 88 (+1) 70 (-2) 88
RH % (24H TREND) 57 (-9) 100 (+4) 61
WIND 20FT/EARLY(MPH) E 12 E 11 E 12
WIND 20FT/LATE(MPH) E 16 SE 9 E 14
MIXING HGT(FT-AGL/MSL)4770 4650
TRANSPORT WND (MPH) E 12 E 12
VENT RATE (KT-FT) 47700 46500
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-102000-
NORTHERN HILLS-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 40 0 50
TEMP (24H TREND) 88 (+2) 67 (-3) 87
RH % (24H TREND) 57 (-8) 99 (+2) 63
WIND 20FT/EARLY(MPH) E 10 E 10 E 10
WIND 20FT/LATE(MPH) E 12 SE 5 NE 12
MIXING HGT(FT-AGL/MSL)5370 5870
TRANSPORT WND (MPH) SE 7 E 7
VENT RATE (KT-FT) 32220 35220
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-102000-
WEST COAST-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY CLEAR PCLDY
PRECIP TYPE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 40 0 40
TEMP (24H TREND) 89 (+1) 70 (-1) 89
RH % (24H TREND) 59 (-6) 97 (+1) 61
WIND 20FT/EARLY(MPH) E 13 E 9 E 10
WIND 20FT/LATE(MPH) E 13 E 8 E 11
MIXING HGT(FT-AGL/MSL)4710 4870
TRANSPORT WND (MPH) SE 9 E 7
VENT RATE (KT-FT) 37680 29220
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-102000-
EASTERN INTERIOR-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 30
TEMP (24H TREND) 86 (+2) 69 (-3) 85
RH % (24H TREND) 60 (-9) 99 (+4) 64
WIND 20FT/EARLY(MPH) E 12 E 11 E 12
WIND 20FT/LATE(MPH) SE 12 E 10 E 12
MIXING HGT(FT-AGL/MSL)5190 5400
TRANSPORT WND (MPH) SE 10 E 13
VENT RATE (KT-FT) 46710 59400
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-102000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 30
TEMP (24H TREND) 81 (+3) 66 (-4) 81
RH % (24H TREND) 68 (-10) 100 (+2) 71
WIND 20FT/EARLY(MPH) SE 11 E 9 E 11
WIND 20FT/LATE(MPH) SE 11 E 8 E 11
MIXING HGT(FT-AGL/MSL)4360 4140
TRANSPORT WND (MPH) SE 12 E 14
VENT RATE (KT-FT) 43600 49680
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-102000-
CENTRAL MOUNTAIN RANGE-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY CLEAR PCLDY
PRECIP TYPE SHOWERS NONE TSTMS
CHANCE PRECIP (%) 50 0 50
TEMP (24H TREND) 84 (+3) 65 (-3) 84
RH % (24H TREND) 61 (-11) 99 (+2) 65
WIND 20FT/EARLY(MPH) SE 8 SE 8 E 8
WIND 20FT/LATE(MPH) SE 9 LGT/VAR E 8
MIXING HGT(FT-AGL/MSL)5780 6690
TRANSPORT WND (MPH) SE 7 E 7
VENT RATE (KT-FT) 34680 40140
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-102000-
CAYEY MOUNTAIN RANGE-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 10 20
TEMP (24H TREND) 80 (+1) 67 (-3) 80
RH % (24H TREND) 67 (-10) 100 (+1) 72
WIND 20FT/EARLY(MPH) E 10 E 8 E 10
WIND 20FT/LATE(MPH) SE 10 E 8 E 10
MIXING HGT(FT-AGL/MSL)4760 4840
TRANSPORT WND (MPH) E 13 E 13
VENT RATE (KT-FT) 52360 53240
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-102000-
VIEQUES-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 30
TEMP (24H TREND) 85 (0) 73 (-2) 85
RH % (24H TREND) 61 (-5) 94 (+4) 63
WIND 20FT/EARLY(MPH) E 16 E 13 E 14
WIND 20FT/LATE(MPH) E 12 E 13 E 13
MIXING HGT(FT-AGL/MSL)3520 2820
TRANSPORT WND (MPH) E 17 E 17
VENT RATE (KT-FT) 52800 42300
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-102000-
CULEBRA-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 30
TEMP (24H TREND) 87 (+1) 73 (-3) 87
RH % (24H TREND) 59 (-9) 97 (+8) 63
WIND 20FT/EARLY(MPH) E 16 E 13 E 14
WIND 20FT/LATE(MPH) E 12 E 13 E 13
MIXING HGT(FT-AGL/MSL)3470 2830
TRANSPORT WND (MPH) E 17 E 16
VENT RATE (KT-FT) 52050 39620
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-102000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER MCLEAR CLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 10 0 20
TEMP (24H TREND) 89 (+1) 71 (-2) 89
RH % (24H TREND) 50 (-7) 91 (0) 52
WIND 20FT/EARLY(MPH) E 18 E 13 E 14
WIND 20FT/LATE(MPH) SE 19 E 11 SE 16
MIXING HGT(FT-AGL/MSL)4600 5120
TRANSPORT WND (MPH) E 16 E 14
VENT RATE (KT-FT) 64400 61440
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-102000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 40 20
TEMP (24H TREND) 85 (0) 73 (-3) 85
RH % (24H TREND) 60 (-6) 96 (+9) 62
WIND 20FT/EARLY(MPH) E 16 E 14 E 14
WIND 20FT/LATE(MPH) E 13 E 14 E 14
MIXING HGT(FT-AGL/MSL)3390 2870
TRANSPORT WND (MPH) E 17 E 17
VENT RATE (KT-FT) 50850 43050
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-102000-
ST CROIX-
330 AM AST FRI APR 10 2026
TODAY TONIGHT SAT
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 20
TEMP (24H TREND) 86 (+1) 72 (-3) 86
RH % (24H TREND) 62 (-6) 96 (+8) 63
WIND 20FT/EARLY(MPH) E 14 E 14 E 13
WIND 20FT/LATE(MPH) E 13 E 13 E 14
MIXING HGT(FT-AGL/MSL)4550 4230
TRANSPORT WND (MPH) E 17 E 18
VENT RATE (KT-FT) 68250 67680
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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